FMF Power Core IV S/A Silencer

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FMF Power Core IV S/A Silencer
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FMF Power Core IV S/A Silencer

Our Price: $197.99$314.99

MSRP: $219.99 - $349.99 - You save up to $35.00 (10% off)

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    -Dan Thomas, CEO and Founder

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Additional Videos

FMF Factory | Inside Look

How To - Repack A Silencer For Your ATV Or Motorcycle

RM YouTube Channel

Details

    FMF’s Power Core IV S/A Silencer aims to give your motorcycle, UTV, or ATV a near perfect balance of price, durability, and performance that won’t leave you wanting anything else. Cues for performance were taken from FMF’s top of the line exhaust systems for a solid boost to both horsepower and torque. And with that power you still have the option to run either a USFS approved spark arrestor or optional 96db quiet core.

    The aluminum body also promotes performance and quiet operation thanks to the ample room for packing material that extends the period between repacking / servicing. With the Power Core IV S/A being rounded off with quality construction, great looks, and interchangeable inserts, this silencer is near the top of the list when you're looking for aftermarket exhaust.

    Specs:
  • Aftermarket silencer for your 4 stroke
  • Comes with USFS approved spark arrestor installed
  • Increase in horsepower and torque over stock
  • Durable stainless steel end cap and mid pipe
  • Lightweight aluminum oval canister
  • Lower weight compared to stock exhaust
  • Easily disassembled for maintenance
  • Advanced packing material extends life
  • Optional 96dB quiet insert available
  • Champagne color anodized canister

FMF Power Core IV S/A Silencer Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
4.8 / 5.0
153 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
134
15
1
1
2
Value
4.8 / 5
Durability
4.9 / 5
Ease of Installation
4.8 / 5
Fitment
4.9 / 5
Performance
4.8 / 5
Finish
4.9 / 5
Features
4.9 / 5
Recommend it?
Yes (36)
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
4 / 5
Recommend it?
Yes
Great product from FMF as always.
Bought this for my 250x and it made a big difference with a jd jet kit and no toil air filter. The only thing is it’s really loud and the baffle to quiet it is always sold out. Which should let you how loud it is. Hey the Q unless you like it loud.
February 13, 2018
Castro Valley , CA, US
Age: 45-64
Purchased
10 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Awesome !! My little guy loves it
Excellent product and excellent service with quick shipping

-m-2013 YAMAHA RAPTOR 125--
February 12, 2018
Holyrood , NL, CA
Purchased
2 weeks ago
Gender:
Male
Weight:
<100 lbs.
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Long time fmf user, never disappointed.
Put this on my 96 xr600r along with power bomb header, excellent fit and awesome sound. Of course rejetted after as expected. Great sound without being too loud.

-m-1996 HONDA XR600R--
January 16, 2018
Needles, CA, US
Age: 25-44
Gender:
Male
Weight:
191 - 220 lbs.
Value
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Great exhaust and great price
This was my first (of many in the future) from Rocky Mountain and I can't express how pleased I am with the prompt service, the pricing, and the excellent exhaust.

Super easy to install and I already feel a little more pep in my son's bike.

-m-2002 HONDA XR200R--
January 8, 2018
Blackfoot, ID, US
Age: 25-44
Purchased
1 month ago
Gender:
Male
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Bolt on Boost
Easy install, fit was perfect ! No rejetting required, seat of the pants meter is off the charts, sound is awesome ! My 11 year old grandson LOVES IT !!! Next up one for the 9 year olds TTR 125 !

-m-2007 YAMAHA TTR230--
December 26, 2017
Monroe, CT, US
Age: 45-64
Purchased
2 months ago
Gender:
Male
Ease of Installation
4 / 5
Fitment
5 / 5
Performance
4 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Better looking than stock.
Easy install. Much lighter than stock. Also quite a bit louder than stock system. Wasn't prepared for that. Although I'm used to it now.

Much better looking than stock, too

-m-2007 KAWASAKI KLR650--
December 6, 2017
Boise, ID, US
Age: 45-64
Purchased
1 year ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
6'1 - 6'3
Value
4 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
4 / 5
Finish
4 / 5
Features
4 / 5
Recommend it?
Yes
great product
needed a new one and replacment it looks and gives me the extra little ponies
November 22, 2017
fort duchesne, UT, US
Age: 25-44
Purchased
3 months ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Love the look and sound of this pipe
I put this on a klr650 love the sound and the look.went in super easy put on with power bomb header.the old black on was just not working for me. Shipping was fast and correct parts the first time.
User submitted image
Added Nov 1, 2017
November 1, 2017
Temecula , CA, US
Age: 45-64
Purchased
10 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
Value
4 / 5
Durability
5 / 5
Ease of Installation
4 / 5
Fitment
5 / 5
Performance
4 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
This exhaust is excellent!
Put this on my 2006 Crf 250x to replace the stock exhaust and love it! Gives the bike a smoother sounding rev and added a little torque.

-m-2006 HONDA CRF250X--
User submitted image
Added Oct 25, 2017
October 25, 2017
Monroe, GA, US
Age: 15-24
Purchased
4 months ago
Gender:
Male
Weight:
101 - 130 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Durability
5 / 5
Ease of Installation
5 / 5
Fitment
5 / 5
Performance
5 / 5
Finish
5 / 5
Features
5 / 5
Recommend it?
Yes
Sounds amazing! Noticed a little bit more power. Easy installation, came with instructions in case you need them.
Cheaper alternative and blew my mind!

-m-2003 YAMAHA YZ450F--
User submitted image
Added Aug 29, 2017
August 29, 2017
Bracebridge, ON, CA
Age: 15-24
Purchased
6 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'7 - 5'9
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 20 questions Browse 20 questions and 53 answers
If your buying for the 06 and newer crf250r does it come with 2 pipes?
A shopper on Sep 19, 2016
BEST ANSWER: No, it's just a single pipe.
Does the spark arrestor make the sound less strong?
Jérôme G on Dec 28, 2017
BEST ANSWER: Not really. Its just a small cone shaped screen. To me it seemed just a tad less noisy at idle but about same when hard on the gas. Mine was a bit less noisy than a earlier version of same exhaust though.
Does this Silencer connect to the stock header?
A shopper on May 23, 2017
BEST ANSWER: Yes it does you'll just need some heat temp silicone which isn't supplied but suggested in the instructions
does this muffler assembly come with a new exhaust donut/gasket? or do I need to purchase a new one
DANIEL W on Apr 5, 2017
BEST ANSWER: It's been over a year since I installed. To my recollection, it was the muffler only. I would reach out to FMF directly or the distributor. Sorry I couldn't have been more help.
has any body put the the fmf 4 on a klx 450 r ? any jetting tips
Brad T on Nov 13, 2016
BEST ANSWER: Brad, we have not mounted the FMF on the KLX. but have had very good results on the DR 650 and the Husaberg FE 450. We added a bigger Mikuni on the 650 and used stock jetting, the Husaberg is injected so NA there. The weight savings on both is a big plus especially the DR650 POUNDS SAVED! Great sound, better throttle response on both throughout power band.
My son installed this new FMF exhaust and didn't tighten the bolts before he went for a quick ride. He's now list the bolt that attached the exhaust to the frame just below the seat. What size should that be?
Aaron K on Jan 13, 2018
BEST ANSWER: Need year, make, model of the machine. Probably fastest to just take another one of the same size off the machine that fits the hole and take it to a hardware store and match it up.
Does it come with new muffler clamp that conects the two pipes Together or is this the whole system?
Kenny D on Jun 29, 2017
BEST ANSWER: This is a slip on silencer (muffler), Slips on to your stock header pipe, it does come with the clamp and all hardware to bolt on to your bike
Will I need to rejet a 2007 TTR 230 if I add this ?
John B on Dec 5, 2017
BEST ANSWER: I installed this on my 07 KLR 650 without any issues or need to reset. After install I noticed my bike was running a bit rich (small amount of backfire on deceleration) which I cured by leaning it out a bit via the set screw under the carb. I don't know if the new exhaust was directly responsible or not, but it it was an easy fix without rejetting the carb. I hope this helps!
Does this come with the gasket that goes between the head pipe and muffler? I have a 2009 Honda Crf450r.
Joshua A on Feb 15, 2017
BEST ANSWER: If it's needed it will. If not then you just put it together with heat temp silicone as stated in the instructions it comes with
This fmf powercore 4 exhaust for a warrior 350 come with quite core and spark arrestor ??
Joshua O on Nov 13, 2017
BEST ANSWER: Yes on both, but keep in mind it will be louder than stock.
Does this pipe come with a header pipe and if not does it fit on my stock header? 1999 wr 400f
A shopper on Jan 23, 2017
BEST ANSWER: Bought this for a 2004 yamaha raptor 350. The fit was perfect to the stock header. It did not come with a header pipe. Great sound and a little seat of the pants power..
can i run a single pipe on a 2006 crf 250 ?
mike h on Feb 10, 2018
BEST ANSWER: Yes you can.
Will this fit on a 2016 can am ds 250?
A shopper on May 24, 2017
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2017 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
Will this fit on a 2016 can am ds 250?
Dustin R on May 7, 2017
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2017 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
Will it fit on a 2017 can am DS 250?
A shopper on Mar 31, 2017
BEST ANSWER: Unfortunately, this will not fit the 2017 DS250. I'm sorry for the inconvenience.
Can you remove the spark arrestor?
A shopper on Feb 26, 2017
BEST ANSWER: Yes.
Will this fit a 2005 Polaris scrambler 500?
A shopper on Nov 6, 2016
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2017 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
I own a 2009 Honda CRF 450R. Will this silencer slip on to my existing factory pipe? Is reprogramming the ECU required for the engine to run properly, or is it just optional for better performance? Thanks!
Cole B on Sep 30, 2016
BEST ANSWER: Yes, this silencer will fit with the factory pipe. You do not need to purchase a programmer to run the exhaust, but it could help you better tune the bike to perform at its best.
do you have to rejet the carb after in stall? 2001 scrambler 500
A shopper on Sep 22, 2016
BEST ANSWER: There is a possibility that you will have to re-jet your machine after installing the new exhaust. There are many factors that go into jetting a machine such as elevation, temperature, and modifications to the machine. The only way to tell if it would need to be rejetted is to try the exhaust, run the machine and see how well it runs. You can then make any necessary changes to the jets to get the machine to run best.
does this connect to the power bomb header?
A shopper on Sep 10, 2016
BEST ANSWER: Yes, it does.
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